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NH4+-tetraalkyl ammonium systems in the synthesis of zeolites

Abstract

ZSM-5 (ref.1) and ZSM-11 (ref. 2) are silica-rich aluminosilicate zeolites with similar two-dimensional intersecting channel structures. They are conventionally synthesised from Na+–tetraalkylammonium (Na+–TAA) systems at high pH and temperatures around 160°C (refs 3–6). We report here what we believe to be the first use of systems free of alkali metal ions in the synthesis of the zeolites ZSM-5 and ZSM-11.

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Bibby, D., Milestone, N. & Aldridge, L. NH4+-tetraalkyl ammonium systems in the synthesis of zeolites. Nature 285, 30–31 (1980). https://doi.org/10.1038/285030a0

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